嵌入式Linux下基于CGI文件上传下载实现.pdf
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5 : Linux CGI # 227 #
Web 1.2. 4 环境变量
, CGI ,
CGI ,
[ 1]
CGI : 3 ,
1)
[4]
Web , (HTML
) , Web CGI :
( CGI * REQUEST METHOD
-
) , Web CGI * CONT ENT LENGTH OST
-
2) Web Web , ST DOUT URL
CGI , TC , * QUERY STRINGGET ,
-
CGI CGI URL
, CGI (
/ )
3) CGI Web 2
URL CGI , , ,
CGI CGI CGI ,
, CGI HTML ( in-
( ) put type= file)
4) Web CGI 2. 1 POST
OST
, , 1024
5) Web WWW OST application/ x- www
HTT , HTT TC - form- urlencoded, URL
T C , ASCII
6) Web Web ASCII multipart/ form- da-
, HTML [ 5]
ta
1. 2 CGI 2.2
1. 2. 1 语言选择 :
, CGI form name= / form 10 method= post action= / / cgi- bin/ up-
C/ C+ + , erl, H
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